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Lesson 6 Understanding cultures
Knowing the world
Unit 8
Learning aims
能谈论如何保护地球
通过阅读，了解地球的相关信息，认识到地球的重要性
Lead in
What do you know about the Earth from the video?
Activity 1
Know something about the Earth
The earth is a special planet. It is our home now, and it will be our home in the future.

Only about one third of our planet is land. There are seven continents: Asia, Africa, Oceania, Antarctica, Europe, North America, and South America. Some land is rich with green forests, fresh water, and good soil. But some places are difficult for humans to live because of the snow and ice, the deserts, or the high mountains.

Read the passage and match each paragraph with its main idea.
But people can’t live everywhere on the earth. We can’t live in water. Oceans cover two thirds of the earth’s surface. The earth has only one big ocean, but we use these names for its different parts: the Pacific Ocean, the Indian Ocean, the Atlantic Ocean, and the Arctic Ocean.
The earth is our only home. We must treat it well for our children and for our children's children, too!
The land of the earth
The earth is our home.
The oceans of the earth
We should treat the earth well.
Read the passage and choose the right structure.
①

③
④
①

③
④
A
B
①

③
④
C
√
The earth is a special planet. It is our home now, and it will be our home in the future.
But people can’t live everywhere on the earth. We can’t live in water.Oceans cover two thirds of the earth’s surface. The earth has only one big ocean, but we use these names for its different parts: the Pacific Ocean, the Indian Ocean, the Atlantic Ocean, and the Arctic Ocean.
Only about one third of our planet is land. There are seven continents: Asia, Africa, Oceania, Antarctica, Europe, North America, and South America.Some land is rich with green forests,fresh water, and good soil. But some places are difficult for humans to live because of the snow and ice, the deserts, or the high mountains.
The earth is our only home. We must treat it well for our children and for our children’s children, too!
Read Para 1-2 and answer the following questions.
The earth is a special planet. It is our home now, and it will be our home in the future.
But people can’t live everywhere on the earth. We can’t live in water. Oceans cover two thirds of the earth’s surface. The earth has only one big ocean, but we use these names for its different parts: the Pacific Ocean, the Indian Ocean, the Atlantic Ocean, and the Arctic Ocean.
A Do you agree that there is only one ocean on the earth?
B What are the names of ocean?
Yes, I do.
The Pacific Ocean, the India Ocean, the Atlantic Ocean, the Arctic Ocean.
Read Para 3-4 and answer the following questions.
Only about one third of our planet is land. There are seven continents: Asia.Africa, Oceania, Antarctica, EuropeNorth America, and South America.Some land is rich with green forests,fresh water, and good soil. But some places are difficult for humans to live because of the snow and ice, the deserts, or the high mountains.
The earth is our only home. We must treat it well for our children and forour children’s children, too!
C How many continents are there in the world? What are they?
D. Which continent is full of snow and ice all year round?
There are seven continents. They are Asia, Africa, Oceania, Antarctica, Europe, North America, and South America.
Antarctica
The earth is a special__________. Oceans _______two thirds of the earth’s surface. We have one ocean and we use these names for its different parts:
_______________________________________________________________.
There are seven continents: _______________________________________
_____________________________. Some places are difficult for_______to live because of the snow and ice, the_______, or the high___________. We must treat our home very well.
planet
cover
The Pacific Ocean, The Indian Ocean, The Atlantic Ocean, The Arctic Ocean
Asia Africa, Oceania, Antarctica, Europe,
North America and South America
humans
deserts
mountains
Fill in the blanks and try to retell the passage.
Fill in and retell
Read the passage again and mark the oceans and continents on the map.
A
B
C
D
E
F
G
H
I
J
K
A.the Pacific Ocean B.the Indian Ocean C.the Atlantic Ocean
D.the Arctic Ocean E.Asia F.Africa G.Oceania H.Antarctica
I. Europe J. North America K. South America
Each continent has its features. Write the names of the continents.
China is on this continent.
Many elephants, giraffes, zebras, and lions live on this continent.
Canada, Mexico, and the US are three of the countries on this continent.
The South Pole is on this continent.
You can find koalas and kangaroos there.
You can see the Amazon River on this continent.
Big Ben and Eiffel lower are on this continent.
What other interesting facts do you know?
Asia
Africa
North America
Antarctica
Oceania
South America
Europe
Discuss the following questions in groups.
Which continent do you like best? Why?
What other interesting facts do you know about the earth?
Language points
1. It is our home now, and it will be our home in the future.
in the future意为“将来”，一般将来时的标志词
e.g. I will be a teacher in the future.
我将来会成为一名教师。
2. But people can’t live everywhere on the earth.
on the earth 在地球上
e.g. There are many animals and plants on the earth.
地球上有许多动物和植物。
on earth意为“究竟”
e.g. What on earth are you doing?你究竟在干什么？
3. Oceans cover two thirds of the earth’s surface.
two thirds 三分之二
分数的表达方式：分子用基数词，分母要用序数词；当分子大于1 时，分母要用复数。如：three fourths 意为“四分之三”。
e.g. Three fifths of the students in our class are girls.
我们班五分之三的学生是女孩。
当分数作主语时， 谓语动词的单复数由后面所接的名词决定。如果是不可数名词，谓语动词用单数形式；如果是可数名词复数，谓语动词用复数形式。
e.g. Only one sixth of the water is clean.
仅有六分之一的水是干净的。
4. Some land is rich with green forests, fresh water, and good soil.
be rich with...富有…… 同义短语：be rich in...
e.g. Some places are rich with all kinds of fruits.
一些地方有各种各样的水果。
5. But some places are difficult for humans to live because of the snow and ice...
because of 因为
e.g. We had to stay at home because of the heavy rain yesterday.
= We had to stay at home because it rained heavily yesterday.
因为昨天下大雨，我们不得不待在家里。
{5C22544A-7EE6-4342-B048-85BDC9FD1C3A}辨析：because of 与because
because of
意为“因为；由于”，是介词短语，其后跟名词、代词或动词-ing 形式
because
意为“因为”，是连词，引导原因状语从句
6. Which continent is full of snow and ice all year round?
be full of 意为“装满；充满”，后面通常跟名词，主语可以是人，也可以是物，表示状态。
e.g. She is full of joy after hearing the good news.
听到这个好消息后，她非常高兴。
拓展：be filled with 意为“用……把……装满”，有时可与 be full of 相互转换。
e.g. The bottle is filled with milk.
=The bottle is full of milk.
瓶子里装满了牛奶。
Activity 2
Talk about how to protect the Earth
What problems does the Earth face?
Self-check
{C4B1156A-380E-4F78-BDF5-A606A8083BF9} I can talk about major countries in the world:
? China has a long history and rich culture.
? Russia goes across Europe and Asia.
? African lions are famous.
? Washington D.C. is the capital city of the US
I know some famous landscapes and the weather around the world:
? There are many different landscapes around the world:
rivers, mountains, forests, waterfalls, deserts...
? The temperature is -10°C.
I can make a country profile with my group and introduce it to the class:
? ... is a beautiful country. ? It’s in...
? Its capital city is... ? People speak.
Improvement needed:
Fun Time
Start at home.
East we go.
Cross the ocean,
To Japan.
East we go
Ocean east to America’s west.
Cross that country,
To Atlantic’s coast.
Europe to Russia,
Then we are back home again.
Summary
◆地球
The earth is a special__________. Oceans _______two thirds of the earth’s surface. We have one ocean and we use these names for its different parts:
_______________________________________________________________.
There are seven continents: _______________________________________
_____________________________. Some places are difficult for_______to live because of the snow and ice, the_______, or the high___________. We must treat our home very well.
planet
cover
The Pacific Ocean, The Indian Ocean, The Atlantic Ocean, The Arctic Ocean
Asia Africa, Oceania, Antarctica, Europe,
North America and South America
humans
deserts
mountains
Exercise
用方框里所给词的适当形式填空。
treat continent because of ocean three
3. Last year， he gave up smoking his illness.
4. We animals as part of nature.
5. No in the world is as big as the Pacific Ocean.
because of
treat
ocean
1. There are seven ________ (大洲) in the world.
continents
2. Two ________ of the earth is covered by water.
thirds
Homework
1. Review the words and phrases in this unit.
2. Write something about a continent.
3. Finish the exercises in your workbook.

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